Find Available Domain Names for a Startup in Under 10 Minutes

Why 10 minutes is enough

Naming a startup can burn weeks. Founders agonize, test names with friends, work with branding consultants. For the naming itself, some of that time is justified. For the find-the-available-one step specifically, 10 minutes is plenty if you have a method. This guide is the method.

What this is not: a guide to choosing between two names you love. That decision depends on product, audience, and taste, and the web has plenty of writing on it. This is how to get from zero candidates to a registered, available domain quickly, without getting stuck.

The 10-minute method

Minutes 0-4: Brainstorm with constraints

Constraints force creativity. Before you type, fix three rules:

1. 3 to 10 characters. Longer names are harder to remember and type. Shorter names are almost never available.
2. Pronounceable. If you say it aloud, a stranger should be able to spell it back within two guesses. If you have to spell it every time you say it, scratch it.
3. Evocative, not descriptive. "TaxSoftwareHub" is descriptive. "Slack" is evocative. Evocative names are shorter, more memorable, and more often available.

With those rules set, open a plain text file and write 40 candidates in 4 minutes. That's 6 seconds each. The point is volume, not curation. Sources for ideas:

• Latin and Greek roots related to your category
• Real English words that are short and relevant
• Invented words that sound like they could be real
• Two-word mashups (flickr-style: drop a vowel or a letter)
• Foreign words for the thing you do (in a language you and your users can probably pronounce)
• Made-up words (but cautious - they're hardest to market)

Don't pause to evaluate. Write 40, move on.

Minutes 4-5: Pick your TLD shortlist

For most startups, the TLDs that matter are:

• .com - the default. Still has the most cultural weight. If you can get a good .com, that's the win.
• .io - dev-centric SaaS and infrastructure startups. Expensive ($40+/year) but no longer exclusive.
• .ai - AI startups. Expensive ($80+/year). Carries strong signal but is becoming saturated.
• .co - short for company. Accepted as a .com alternative, shorter, often available.
• .dev - newer Google-operated TLD, popular for dev tools.

For a B2B SaaS, check .com + .io + .co. For an AI product, check .com + .ai. For an open source dev tool, .dev + .com + .io. Skip weird TLDs (.xyz, .site, .online) unless you have a specific reason - they carry negative trust signals with some audiences.

Minutes 5-7: Bulk check all 40 at once

This is where a bulk domain checker earns its keep. Paste your 40 names, select your TLDs, hit check. You get a grid in under 30 seconds showing which name-TLD combinations are available.

Bulk Domain Checker Pro does this in Chrome. Open the extension popup, paste your list, pick TLDs from the shortlist, click Check. Wait. Read.

Minutes 7-9: Filter and pick

You'll have something like: 40 names, 5 TLDs, 200 checks, maybe 15-30 green. Now you filter.

Cross out:

• Names that are only available on weird TLDs you rejected in step 2.
• Names that were great on paper but look weird attached to the TLD (e.g., "go.ai" - too generic).
• Names that turn out to be trademarked when you do a quick Google search (do this for your top 3-5, not all of them).
• Names that have bad secondary meanings in common languages (quick Google check for each top candidate).

You should be down to 3-5 real candidates.

Minute 9-10: Register

Open your preferred registrar (Porkbun, Cloudflare Registrar, and Namecheap are commonly recommended for TLD price and decent UX), buy the domain for the name you like most. Set auto-renew. Register the same name at adjacent TLDs ($10-20 extra) if you're likely to expand - e.g., if you're going for the .io now but might want the .com later.

Done.

Things that kill this method

Falling in love with a dead name. You decided on "Quasar" an hour ago. It's gone on every TLD you want. You spend the next three hours trying variations: Quasaar, Quasarly, GetQuasar, Quasar.io (actually taken). Stop. Move on. The 40-name brainstorm exists so you always have 39 backups.

Checking one at a time. If you're typing names into GoDaddy's main search one at a time, each check takes 15 seconds of page load, ads, and suggested-names noise. Multiply by 40 names x 5 TLDs = 50 minutes of pure friction. Bulk checking compresses that into one query.

Trademark paranoia at step 2. Don't Google every candidate during brainstorm. You'll lose the tempo. Save the trademark and conflict check for your top 3-5.

Secondary domain hoarding. You don't need the .com, .io, AND .ai of your chosen name. Pick one primary, maybe one defensive, move on. Buying all five is a $300 tax for a startup that doesn't exist yet.

A note on "premium" domains

When a bulk checker shows "taken" for a domain, that domain is registered but may be for sale on the aftermarket - for anywhere from $500 to $50,000+. For 99% of startups, don't buy premium domains. Pick an available one. The exception is a product where the name is load-bearing for positioning (a consumer brand where name recognition is the product) and you have funding to justify it. Pre-seed startups should almost always skip the premium aftermarket.

What about trademarks?

Domain availability and trademark availability are different things. A domain can be available to register while the name is trademarked in your industry, which creates real legal risk. Before you commit to a name, do two quick checks:

• Search the USPTO database (or your country's equivalent) for the exact mark in your product category.
• Google the name + your industry ("Quasar legal" if you're in legal tech, etc.). If there's a direct competitor with the same name, you have a conflict even without a formal trademark.

These are preliminary checks, not legal advice. For serious protection, talk to a trademark attorney before launch.

Common naming pitfalls

Hard-to-spell names. "Bluesnake" is fine. "Blewsnayke" is not. If the name requires explanation, you lose search volume.

Numbers. "Startup3" is ambiguous when spoken. People aren't sure if it's the digit or the word. Avoid.

Hyphens. "Start-up-name.com" is harder to remember and type than "startupname.com". Avoid unless there's a compelling reason.

Misspelled words. Tempting (Flickr, Tumblr, Grindr) but risky. For every Tumblr there are ten tools with misspelled names that nobody can find.

TLD-as-suffix. "go.io" where the TLD completes the word. Fun but fragile - future rebrand involves buying the .com anyway.

Related reading

• Domain Name Brainstorming
• Domain Checker for Startups
• How to Check Domain Availability in Bulk
• Best Domain Registrars in 2026